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<div class="title">qwt_text_engine.cpp</div>  </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Qwt Widget Library</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (C) 1997   Josef Wilgen</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Copyright (C) 2002   Uwe Rathmann</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * This library is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *****************************************************************************/</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160; </div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#include &quot;qwt_text_engine.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor">#include &quot;qwt_painter.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160; </div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &lt;qpainter.h&gt;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &lt;qpixmap.h&gt;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &lt;qimage.h&gt;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &lt;qmap.h&gt;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &lt;qwidget.h&gt;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#include &lt;qtextobject.h&gt;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &lt;qtextdocument.h&gt;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &lt;qabstracttextdocumentlayout.h&gt;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160; </div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="keyword">static</span> QString taggedRichText( <span class="keyword">const</span> QString&amp; text, <span class="keywordtype">int</span> flags )</div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;{</div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;    QString richText = text;</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160; </div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;    <span class="comment">// By default QSimpleRichText is Qt::AlignLeft</span></div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;    <span class="keywordflow">if</span> ( flags &amp; Qt::AlignJustify )</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;    {</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;        richText.prepend( QLatin1String( <span class="stringliteral">&quot;&lt;div align=\&quot;justify\&quot;&gt;&quot;</span> ) );</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;        richText.append( QLatin1String ( <span class="stringliteral">&quot;&lt;/div&gt;&quot;</span> ) );</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;    }</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( flags &amp; Qt::AlignRight )</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;    {</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;        richText.prepend( QLatin1String ( <span class="stringliteral">&quot;&lt;div align=\&quot;right\&quot;&gt;&quot;</span> ) );</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;        richText.append( QLatin1String ( <span class="stringliteral">&quot;&lt;/div&gt;&quot;</span> ) );</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;    }</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( flags &amp; Qt::AlignHCenter )</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    {</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;        richText.prepend( QLatin1String ( <span class="stringliteral">&quot;&lt;div align=\&quot;center\&quot;&gt;&quot;</span> ) );</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;        richText.append( QLatin1String ( <span class="stringliteral">&quot;&lt;/div&gt;&quot;</span> ) );</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;    }</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160; </div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;    <span class="keywordflow">return</span> richText;</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;}</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160; </div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="keyword">namespace</span></div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;{</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    <span class="keyword">class </span>QwtRichTextDocument : <span class="keyword">public</span> QTextDocument</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    {</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;      <span class="keyword">public</span>:</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;        QwtRichTextDocument( <span class="keyword">const</span> QString&amp; text, <span class="keywordtype">int</span> flags, <span class="keyword">const</span> QFont&amp; font )</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;        {</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;            setUndoRedoEnabled( <span class="keyword">false</span> );</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;            setDefaultFont( font );</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;            setHtml( text );</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160; </div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;            <span class="comment">// make sure we have a document layout</span></div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;            ( void )documentLayout();</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160; </div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;            QTextOption option = defaultTextOption();</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;            <span class="keywordflow">if</span> ( flags &amp; Qt::TextWordWrap )</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;                option.setWrapMode( QTextOption::WordWrap );</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;                option.setWrapMode( QTextOption::NoWrap );</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160; </div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;            option.setAlignment( <span class="keyword">static_cast&lt;</span> Qt::Alignment <span class="keyword">&gt;</span>( flags ) );</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;            setDefaultTextOption( option );</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160; </div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;            QTextFrame* root = rootFrame();</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;            QTextFrameFormat fm = root-&gt;frameFormat();</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;            fm.setBorder( 0 );</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;            fm.setMargin( 0 );</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;            fm.setPadding( 0 );</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;            fm.setBottomMargin( 0 );</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;            fm.setLeftMargin( 0 );</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;            root-&gt;setFrameFormat( fm );</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160; </div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;            adjustSize();</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;        }</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    };</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;}</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160; </div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;<span class="keyword">class </span>QwtPlainTextEngine::PrivateData</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;{</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    <span class="keywordtype">int</span> effectiveAscent( <span class="keyword">const</span> QFont&amp; font )<span class="keyword"> const</span></div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;<span class="keyword">    </span>{</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;        <span class="keyword">const</span> QString fontKey = font.key();</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160; </div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        <a class="code" href="class_q_map.html">QMap&lt; QString, int &gt;::const_iterator</a> it =</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;            m_ascentCache.constFind( fontKey );</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160; </div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;        <span class="keywordflow">if</span> ( it != m_ascentCache.constEnd() )</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;            <span class="keywordflow">return</span> *it;</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160; </div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> ascent = findAscent( font );</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;        m_ascentCache.insert( fontKey, ascent );</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160; </div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;        <span class="keywordflow">return</span> ascent;</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    }</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160; </div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    <span class="keyword">static</span> <span class="keywordtype">int</span> findAscent( <span class="keyword">const</span> QFont&amp; font )</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    {</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;        <span class="keyword">static</span> <span class="keyword">const</span> QString dummy( <span class="stringliteral">&quot;E&quot;</span> );</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;        <span class="keyword">static</span> <span class="keyword">const</span> QColor white( Qt::white );</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160; </div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;        <span class="keyword">const</span> QFontMetrics fm( font );</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160; </div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;        QPixmap pm( <a class="code" href="class_qwt_painter.html#af66a967fc49ff6deae32c3fd3826045b">QwtPainter::horizontalAdvance</a>( fm, dummy ), fm.height() );</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;        pm.fill( white );</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160; </div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;        QPainter p( &amp;pm );</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;        p.setFont( font );</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;        p.drawText( 0, 0,  pm.width(), pm.height(), 0, dummy );</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;        p.end();</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160; </div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;        <span class="keyword">const</span> QImage img = pm.toImage();</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160; </div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;        <span class="keywordtype">int</span> row = 0;</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;        <span class="keywordflow">for</span> ( row = 0; row &lt; img.height(); row++ )</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;        {</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;            <span class="keyword">const</span> QRgb* line = <span class="keyword">reinterpret_cast&lt;</span> <span class="keyword">const </span>QRgb* <span class="keyword">&gt;</span>(</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;                img.scanLine( row ) );</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160; </div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> w = pm.width();</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;            <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> col = 0; col &lt; w; col++ )</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;            {</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;                <span class="keywordflow">if</span> ( line[col] != white.rgb() )</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;                    <span class="keywordflow">return</span> fm.ascent() - row + 1;</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;            }</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;        }</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160; </div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;        <span class="keywordflow">return</span> fm.ascent();</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    }</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160; </div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;    <span class="keyword">mutable</span> <a class="code" href="class_q_map.html">QMap&lt; QString, int &gt;</a> m_ascentCache;</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;};</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160; </div>
<div class="line"><a name="l00141"></a><span class="lineno"><a class="line" href="class_qwt_text_engine.html#a97c5ef76ee920ab0f19e178e85017d9d">  141</a></span>&#160;<a class="code" href="class_qwt_text_engine.html#a97c5ef76ee920ab0f19e178e85017d9d">QwtTextEngine::QwtTextEngine</a>()</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;{</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;}</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160; </div>
<div class="line"><a name="l00146"></a><span class="lineno"><a class="line" href="class_qwt_text_engine.html#adda9e23494429c54b3cc3452940fb2bc">  146</a></span>&#160;<a class="code" href="class_qwt_text_engine.html#adda9e23494429c54b3cc3452940fb2bc">QwtTextEngine::~QwtTextEngine</a>()</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;{</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;}</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160; </div>
<div class="line"><a name="l00151"></a><span class="lineno"><a class="line" href="class_qwt_plain_text_engine.html#a0ad29b2229a879afe49b546704eb7079">  151</a></span>&#160;<a class="code" href="class_qwt_plain_text_engine.html#a0ad29b2229a879afe49b546704eb7079">QwtPlainTextEngine::QwtPlainTextEngine</a>()</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;{</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;    m_data = <span class="keyword">new</span> PrivateData;</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;}</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160; </div>
<div class="line"><a name="l00157"></a><span class="lineno"><a class="line" href="class_qwt_plain_text_engine.html#a0ada8796b2caaff7bb8d61e9fb1b5143">  157</a></span>&#160;<a class="code" href="class_qwt_plain_text_engine.html#a0ada8796b2caaff7bb8d61e9fb1b5143">QwtPlainTextEngine::~QwtPlainTextEngine</a>()</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;{</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;    <span class="keyword">delete</span> m_data;</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;}</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160; </div>
<div class="line"><a name="l00172"></a><span class="lineno"><a class="line" href="class_qwt_plain_text_engine.html#a0945714b810f806ae1338d6e3718d63e">  172</a></span>&#160;<span class="keywordtype">double</span> <a class="code" href="class_qwt_plain_text_engine.html#a0945714b810f806ae1338d6e3718d63e">QwtPlainTextEngine::heightForWidth</a>( <span class="keyword">const</span> QFont&amp; font, <span class="keywordtype">int</span> flags,</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;    <span class="keyword">const</span> QString&amp; text, <span class="keywordtype">double</span> width )<span class="keyword"> const</span></div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;    <span class="keyword">const</span> QFontMetricsF fm( font );</div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;    <span class="keyword">const</span> QRectF rect = fm.boundingRect(</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;        QRectF( 0, 0, width, QWIDGETSIZE_MAX ), flags, text );</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160; </div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;    <span class="keywordflow">return</span> rect.height();</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;}</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160; </div>
<div class="line"><a name="l00191"></a><span class="lineno"><a class="line" href="class_qwt_plain_text_engine.html#a2c84f6ff5615a9118e9e65340d5529f0">  191</a></span>&#160;QSizeF <a class="code" href="class_qwt_plain_text_engine.html#a2c84f6ff5615a9118e9e65340d5529f0">QwtPlainTextEngine::textSize</a>( <span class="keyword">const</span> QFont&amp; font,</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;    <span class="keywordtype">int</span> flags, <span class="keyword">const</span> QString&amp; text )<span class="keyword"> const</span></div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;    <span class="keyword">const</span> QFontMetricsF fm( font );</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;    <span class="keyword">const</span> QRectF rect = fm.boundingRect(</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;        QRectF( 0, 0, QWIDGETSIZE_MAX, QWIDGETSIZE_MAX ), flags, text );</div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160; </div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;    <span class="keywordflow">return</span> rect.size();</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;}</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160; </div>
<div class="line"><a name="l00210"></a><span class="lineno"><a class="line" href="class_qwt_plain_text_engine.html#a10ca5c93726c523cc0b167afa5a4bac0">  210</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plain_text_engine.html#a10ca5c93726c523cc0b167afa5a4bac0">QwtPlainTextEngine::textMargins</a>( <span class="keyword">const</span> QFont&amp; font, <span class="keyword">const</span> QString&amp;,</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;    <span class="keywordtype">double</span>&amp; left, <span class="keywordtype">double</span>&amp; right, <span class="keywordtype">double</span>&amp; top, <span class="keywordtype">double</span>&amp; bottom )<span class="keyword"> const</span></div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;    left = right = top = 0;</div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160; </div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;    <span class="keyword">const</span> QFontMetricsF fm( font );</div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;    top = fm.ascent() - m_data-&gt;effectiveAscent( font );</div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;    bottom = fm.descent();</div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;}</div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160; </div>
<div class="line"><a name="l00230"></a><span class="lineno"><a class="line" href="class_qwt_plain_text_engine.html#a3f7c5cde543fd1dbb2420d5a1c619767">  230</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_plain_text_engine.html#a3f7c5cde543fd1dbb2420d5a1c619767">QwtPlainTextEngine::draw</a>( QPainter* painter, <span class="keyword">const</span> QRectF&amp; rect,</div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;    <span class="keywordtype">int</span> flags, <span class="keyword">const</span> QString&amp; text )<span class="keyword"> const</span></div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;    <a class="code" href="class_qwt_painter.html#a6ccfe385330f1e2f7e7b765ab0defa06">QwtPainter::drawText</a>( painter, rect, flags, text );</div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;}</div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160; </div>
<div class="line"><a name="l00240"></a><span class="lineno"><a class="line" href="class_qwt_plain_text_engine.html#aa6c7018d2a70422213129173f771f708">  240</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="class_qwt_plain_text_engine.html#aa6c7018d2a70422213129173f771f708">QwtPlainTextEngine::mightRender</a>( <span class="keyword">const</span> QString&amp; )<span class="keyword"> const</span></div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;}</div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160; </div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;<span class="preprocessor">#ifndef QT_NO_RICHTEXT</span></div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160; </div>
<div class="line"><a name="l00248"></a><span class="lineno"><a class="line" href="class_qwt_rich_text_engine.html#aa4c1d5a1ee88d7406ba1d6453005b46a">  248</a></span>&#160;<a class="code" href="class_qwt_rich_text_engine.html#aa4c1d5a1ee88d7406ba1d6453005b46a">QwtRichTextEngine::QwtRichTextEngine</a>()</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;{</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;}</div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160; </div>
<div class="line"><a name="l00262"></a><span class="lineno"><a class="line" href="class_qwt_rich_text_engine.html#a6f771bfd843aa0b73054b9614d581cd0">  262</a></span>&#160;<span class="keywordtype">double</span> <a class="code" href="class_qwt_rich_text_engine.html#a6f771bfd843aa0b73054b9614d581cd0">QwtRichTextEngine::heightForWidth</a>( <span class="keyword">const</span> QFont&amp; font, <span class="keywordtype">int</span> flags,</div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;    <span class="keyword">const</span> QString&amp; text, <span class="keywordtype">double</span> width )<span class="keyword"> const</span></div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;    QwtRichTextDocument doc( text, flags, font );</div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160; </div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;    doc.setPageSize( QSizeF( width, QWIDGETSIZE_MAX ) );</div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;    <span class="keywordflow">return</span> doc.documentLayout()-&gt;documentSize().height();</div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;}</div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160; </div>
<div class="line"><a name="l00281"></a><span class="lineno"><a class="line" href="class_qwt_rich_text_engine.html#a0d1f78b85935ecbff2bf5ea8cb84ba14">  281</a></span>&#160;QSizeF <a class="code" href="class_qwt_rich_text_engine.html#a0d1f78b85935ecbff2bf5ea8cb84ba14">QwtRichTextEngine::textSize</a>( <span class="keyword">const</span> QFont&amp; font,</div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;    <span class="keywordtype">int</span> flags, <span class="keyword">const</span> QString&amp; text )<span class="keyword"> const</span></div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;    QwtRichTextDocument doc( text, flags, font );</div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160; </div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;    QTextOption option = doc.defaultTextOption();</div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;    <span class="keywordflow">if</span> ( option.wrapMode() != QTextOption::NoWrap )</div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;    {</div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;        option.setWrapMode( QTextOption::NoWrap );</div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;        doc.setDefaultTextOption( option );</div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;        doc.adjustSize();</div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;    }</div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160; </div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;    <span class="keywordflow">return</span> doc.size();</div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;}</div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160; </div>
<div class="line"><a name="l00305"></a><span class="lineno"><a class="line" href="class_qwt_rich_text_engine.html#abdcff7491057afe90c168c49c339b01d">  305</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_rich_text_engine.html#abdcff7491057afe90c168c49c339b01d">QwtRichTextEngine::draw</a>( QPainter* painter, <span class="keyword">const</span> QRectF&amp; rect,</div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;    <span class="keywordtype">int</span> flags, <span class="keyword">const</span> QString&amp; text )<span class="keyword"> const</span></div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;    QwtRichTextDocument doc( text, flags, painter-&gt;font() );</div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;    <a class="code" href="class_qwt_painter.html#a1a44fdbb66452b38d57369a485da3971">QwtPainter::drawSimpleRichText</a>( painter, rect, flags, doc );</div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;}</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160; </div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;QString QwtRichTextEngine::taggedText( <span class="keyword">const</span> QString&amp; text, <span class="keywordtype">int</span> flags )<span class="keyword"> const</span></div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;    <span class="keywordflow">return</span> taggedRichText( text, flags );</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;}</div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160; </div>
<div class="line"><a name="l00331"></a><span class="lineno"><a class="line" href="class_qwt_rich_text_engine.html#a548d48e5e5a2202e83c51e7b61ae7328">  331</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="class_qwt_rich_text_engine.html#a548d48e5e5a2202e83c51e7b61ae7328">QwtRichTextEngine::mightRender</a>( <span class="keyword">const</span> QString&amp; text )<span class="keyword"> const</span></div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;    <span class="keywordflow">return</span> Qt::mightBeRichText( text );</div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;}</div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160; </div>
<div class="line"><a name="l00344"></a><span class="lineno"><a class="line" href="class_qwt_rich_text_engine.html#a2790acb2618c446ed6707a07d1a4c811">  344</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_rich_text_engine.html#a2790acb2618c446ed6707a07d1a4c811">QwtRichTextEngine::textMargins</a>( <span class="keyword">const</span> QFont&amp;, <span class="keyword">const</span> QString&amp;,</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;    <span class="keywordtype">double</span>&amp; left, <span class="keywordtype">double</span>&amp; right, <span class="keywordtype">double</span>&amp; top, <span class="keywordtype">double</span>&amp; bottom )<span class="keyword"> const</span></div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;    left = right = top = bottom = 0;</div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;}</div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160; </div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;<span class="preprocessor">#endif </span><span class="comment">// !QT_NO_RICHTEXT</span></div>
<div class="ttc" id="aclass_q_map_html"><div class="ttname"><a href="class_q_map.html">QMap</a></div><div class="ttdef"><b>Definition:</b> <a href="qwt__compass_8h_source.html#l00019">qwt_compass.h:19</a></div></div>
<div class="ttc" id="aclass_qwt_painter_html_a1a44fdbb66452b38d57369a485da3971"><div class="ttname"><a href="class_qwt_painter.html#a1a44fdbb66452b38d57369a485da3971">QwtPainter::drawSimpleRichText</a></div><div class="ttdeci">static void drawSimpleRichText(QPainter *, const QRectF &amp;, int flags, const QTextDocument &amp;)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__painter_8cpp_source.html#l00489">qwt_painter.cpp:489</a></div></div>
<div class="ttc" id="aclass_qwt_painter_html_a6ccfe385330f1e2f7e7b765ab0defa06"><div class="ttname"><a href="class_qwt_painter.html#a6ccfe385330f1e2f7e7b765ab0defa06">QwtPainter::drawText</a></div><div class="ttdeci">static void drawText(QPainter *, qreal x, qreal y, const QString &amp;)</div><div class="ttdoc">Wrapper for QPainter::drawText()</div><div class="ttdef"><b>Definition:</b> <a href="qwt__painter_8cpp_source.html#l00438">qwt_painter.cpp:438</a></div></div>
<div class="ttc" id="aclass_qwt_painter_html_af66a967fc49ff6deae32c3fd3826045b"><div class="ttname"><a href="class_qwt_painter.html#af66a967fc49ff6deae32c3fd3826045b">QwtPainter::horizontalAdvance</a></div><div class="ttdeci">static int horizontalAdvance(const QFontMetrics &amp;, const QString &amp;)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__painter_8cpp_source.html#l01379">qwt_painter.cpp:1379</a></div></div>
<div class="ttc" id="aclass_qwt_plain_text_engine_html_a0945714b810f806ae1338d6e3718d63e"><div class="ttname"><a href="class_qwt_plain_text_engine.html#a0945714b810f806ae1338d6e3718d63e">QwtPlainTextEngine::heightForWidth</a></div><div class="ttdeci">virtual double heightForWidth(const QFont &amp;font, int flags, const QString &amp;text, double width) const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00172">qwt_text_engine.cpp:172</a></div></div>
<div class="ttc" id="aclass_qwt_plain_text_engine_html_a0ad29b2229a879afe49b546704eb7079"><div class="ttname"><a href="class_qwt_plain_text_engine.html#a0ad29b2229a879afe49b546704eb7079">QwtPlainTextEngine::QwtPlainTextEngine</a></div><div class="ttdeci">QwtPlainTextEngine()</div><div class="ttdoc">Constructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00151">qwt_text_engine.cpp:151</a></div></div>
<div class="ttc" id="aclass_qwt_plain_text_engine_html_a0ada8796b2caaff7bb8d61e9fb1b5143"><div class="ttname"><a href="class_qwt_plain_text_engine.html#a0ada8796b2caaff7bb8d61e9fb1b5143">QwtPlainTextEngine::~QwtPlainTextEngine</a></div><div class="ttdeci">virtual ~QwtPlainTextEngine()</div><div class="ttdoc">Destructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00157">qwt_text_engine.cpp:157</a></div></div>
<div class="ttc" id="aclass_qwt_plain_text_engine_html_a10ca5c93726c523cc0b167afa5a4bac0"><div class="ttname"><a href="class_qwt_plain_text_engine.html#a10ca5c93726c523cc0b167afa5a4bac0">QwtPlainTextEngine::textMargins</a></div><div class="ttdeci">virtual void textMargins(const QFont &amp;, const QString &amp;, double &amp;left, double &amp;right, double &amp;top, double &amp;bottom) const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00210">qwt_text_engine.cpp:210</a></div></div>
<div class="ttc" id="aclass_qwt_plain_text_engine_html_a2c84f6ff5615a9118e9e65340d5529f0"><div class="ttname"><a href="class_qwt_plain_text_engine.html#a2c84f6ff5615a9118e9e65340d5529f0">QwtPlainTextEngine::textSize</a></div><div class="ttdeci">virtual QSizeF textSize(const QFont &amp;font, int flags, const QString &amp;text) const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00191">qwt_text_engine.cpp:191</a></div></div>
<div class="ttc" id="aclass_qwt_plain_text_engine_html_a3f7c5cde543fd1dbb2420d5a1c619767"><div class="ttname"><a href="class_qwt_plain_text_engine.html#a3f7c5cde543fd1dbb2420d5a1c619767">QwtPlainTextEngine::draw</a></div><div class="ttdeci">virtual void draw(QPainter *, const QRectF &amp;rect, int flags, const QString &amp;text) const override</div><div class="ttdoc">Draw the text in a clipping rectangle.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00230">qwt_text_engine.cpp:230</a></div></div>
<div class="ttc" id="aclass_qwt_plain_text_engine_html_aa6c7018d2a70422213129173f771f708"><div class="ttname"><a href="class_qwt_plain_text_engine.html#aa6c7018d2a70422213129173f771f708">QwtPlainTextEngine::mightRender</a></div><div class="ttdeci">virtual bool mightRender(const QString &amp;) const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00240">qwt_text_engine.cpp:240</a></div></div>
<div class="ttc" id="aclass_qwt_rich_text_engine_html_a0d1f78b85935ecbff2bf5ea8cb84ba14"><div class="ttname"><a href="class_qwt_rich_text_engine.html#a0d1f78b85935ecbff2bf5ea8cb84ba14">QwtRichTextEngine::textSize</a></div><div class="ttdeci">virtual QSizeF textSize(const QFont &amp;font, int flags, const QString &amp;text) const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00281">qwt_text_engine.cpp:281</a></div></div>
<div class="ttc" id="aclass_qwt_rich_text_engine_html_a2790acb2618c446ed6707a07d1a4c811"><div class="ttname"><a href="class_qwt_rich_text_engine.html#a2790acb2618c446ed6707a07d1a4c811">QwtRichTextEngine::textMargins</a></div><div class="ttdeci">virtual void textMargins(const QFont &amp;, const QString &amp;, double &amp;left, double &amp;right, double &amp;top, double &amp;bottom) const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00344">qwt_text_engine.cpp:344</a></div></div>
<div class="ttc" id="aclass_qwt_rich_text_engine_html_a548d48e5e5a2202e83c51e7b61ae7328"><div class="ttname"><a href="class_qwt_rich_text_engine.html#a548d48e5e5a2202e83c51e7b61ae7328">QwtRichTextEngine::mightRender</a></div><div class="ttdeci">virtual bool mightRender(const QString &amp;) const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00331">qwt_text_engine.cpp:331</a></div></div>
<div class="ttc" id="aclass_qwt_rich_text_engine_html_a6f771bfd843aa0b73054b9614d581cd0"><div class="ttname"><a href="class_qwt_rich_text_engine.html#a6f771bfd843aa0b73054b9614d581cd0">QwtRichTextEngine::heightForWidth</a></div><div class="ttdeci">virtual double heightForWidth(const QFont &amp;font, int flags, const QString &amp;text, double width) const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00262">qwt_text_engine.cpp:262</a></div></div>
<div class="ttc" id="aclass_qwt_rich_text_engine_html_aa4c1d5a1ee88d7406ba1d6453005b46a"><div class="ttname"><a href="class_qwt_rich_text_engine.html#aa4c1d5a1ee88d7406ba1d6453005b46a">QwtRichTextEngine::QwtRichTextEngine</a></div><div class="ttdeci">QwtRichTextEngine()</div><div class="ttdoc">Constructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00248">qwt_text_engine.cpp:248</a></div></div>
<div class="ttc" id="aclass_qwt_rich_text_engine_html_abdcff7491057afe90c168c49c339b01d"><div class="ttname"><a href="class_qwt_rich_text_engine.html#abdcff7491057afe90c168c49c339b01d">QwtRichTextEngine::draw</a></div><div class="ttdeci">virtual void draw(QPainter *, const QRectF &amp;rect, int flags, const QString &amp;text) const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00305">qwt_text_engine.cpp:305</a></div></div>
<div class="ttc" id="aclass_qwt_text_engine_html_a97c5ef76ee920ab0f19e178e85017d9d"><div class="ttname"><a href="class_qwt_text_engine.html#a97c5ef76ee920ab0f19e178e85017d9d">QwtTextEngine::QwtTextEngine</a></div><div class="ttdeci">QwtTextEngine()</div><div class="ttdoc">Constructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00141">qwt_text_engine.cpp:141</a></div></div>
<div class="ttc" id="aclass_qwt_text_engine_html_adda9e23494429c54b3cc3452940fb2bc"><div class="ttname"><a href="class_qwt_text_engine.html#adda9e23494429c54b3cc3452940fb2bc">QwtTextEngine::~QwtTextEngine</a></div><div class="ttdeci">virtual ~QwtTextEngine()</div><div class="ttdoc">Destructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__text__engine_8cpp_source.html#l00146">qwt_text_engine.cpp:146</a></div></div>
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